#include <stdio.h>

int main(){
    double sum = 0;
    double avg_num;
    float num;
    printf("输入10个数字：\n");
    for(int i = 0; i < 10; i++){
        scanf("%f\n", &num);
        sum += num;
    }
    avg_num = sum / 10;
    printf("The average is %.2f\n", avg_num);

    return 0;
}